Armstrong Cortega Square Edge-3521

Armstrong Cortega (square edge) ceiling tiles are economical mineral fibre acoustic tiles designed for suspended (lay-in) ceiling grid systems. They feature a square edge detail that sits flush within a standard exposed grid (typically 24 mm or 15 mm grid system), creating a clean, flat ceiling appearance.

The tiles have a medium-textured, non-directional white finish that helps reduce visible joints and simplifies installation. They provide standard acoustic performance (around NRC 0.55), making them suitable for general commercial spaces such as offices, classrooms, retail areas, and corridors where basic sound control and durability are required.

Carton of 10 tiles. Also available in Imperial Size – 3520 (1220mm x 610mm)